Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
April
Weather in April
Temperature
April brings an average high-temperature of a still hot 30.2°C (86.4°F), nearly identical to the preceding month. April's nights in L'Observatoire observe an average temperature of 21.6°C (70.9°F).Heat index
April's mean heat index is estimated at a scorching 40°C (104°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In L'Observatoire, the average relative humidity in April is 87%.Rainfall
In L'Observatoire, French Guiana, in April, during 26.8 rainfall days, 115mm (4.53") of precipitation is typically accumulated. In L'Observatoire, during the entire year, the rain falls for 259.3 days and collects up to 898mm (35.35") of precipitation.Daylight
The average length of the day in April is 12h and 13min.On the first day of April in L'Observatoire, sunrise is at 06:34 and sunset at 18:44. On the last day of the month, sunrise is at 06:24 and sunset at 18:41 -03.
Sunshine
The average sunshine in April is 5.1h.UV index
In L'Observatoire, the average daily maximum UV index in April is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: In April, the maximum UV index of 6 suggests this advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in L'Observatoire in April?
What is the average humidity in April in L'Observatoire?
How many days does it rain in April in L'Observatoire?
What is the average length of the day in April in L'Observatoire?
When are sunrise and sunset in April in L'Observatoire?
How many hours of sunshine does L'Observatoire have in April?
How high is the UV index in April in L'Observatoire?
Average temperature in April
L'Observatoire, French Guiana
- Average high temperature in April: 30.2°C
The warmest month (with the highest average high temperature) is October (34.9°C).
The month with the lowest average high temperature is February (29.5°C).
- Average low temperature in April: 21.6°C
The month with the highest average low temperature is May (22.1°C).
The coldest month (with the lowest average low temperature) is January (20.6°C).
Average pressure in April
L'Observatoire, French Guiana
- Average pressure in April: 1011.8mbar
The months with the highest atmospheric pressure are June and July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in April
L'Observatoire, French Guiana
- Average wind speed in April: 5.1km/h
The windiest months (with the highest average wind speed) are March and November (5.5km/h).
The calmest month (with the lowest average wind speed) is July (4.4km/h).
Average humidity in April
L'Observatoire, French Guiana
- Average humidity in April: 87%
The month with the highest relative humidity is May (90%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
L'Observatoire, French Guiana
- Average rainfall in April: 115mm
The wettest month (with the highest rainfall) is May (169mm).
The driest month (with the least rainfall) is October (21mm).
Average rainfall days in April
L'Observatoire, French Guiana
- Average rainfall days in April: 26.8 days
The months with the highest number of rainy days are January and December (28 days).
The month with the least rainy days is September (10.3 days).
Average daylight in April /
Average sunshine in April
L'Observatoire, French Guiana
- Average daylight in April: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in April: 5h and 1min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in April
L'Observatoire, French Guiana
- Average sunshine days in April: 2 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is February (1.4 days).
Average UV index in April
L'Observatoire, French Guiana
- Average UV index in April: 6
The months with the highest UV index are July, August, September, October and November (UV index 7).
The month with the lowest UV index is December (UV index 5).
Average cloud cover in April
L'Observatoire, French Guiana
- Average cloud cover in April: 76
The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is October (Cloud cover 46).
Average visibility in April
L'Observatoire, French Guiana
- Average visibility in April: 6km
The months with the highest visibility are August, September, October and November (7km).
The months with the lowest visibility are January, February, March, April, May, June, July and December (6km).
